Nikon d5000 bokeh help?

I've recently been trying to get the bokeh effect on some of my photos with my nikon d5000. I set the focal length to 55mm on my 18-55mm lens and the aperture as wide as it will go. (5.6?) I set it to manual and my subject comes out focused with the background blurry but the background doesn't have the circular discs like I'd like it to. Help?

Added (1). I would like it to come out like this:

Added (2). And if you happened to know what does it mean if bokeh is SOOC?

Bokeh is the description of how points of light are rendered in the out of focus area of photos. There are a lot of factors that control how the light is rendered, from lens design to light source. Here are a few sites with information to help you begin experimenting with obtaining good bokeh:
http://theonlinephotographer.blogspot.com/2006/01/bokehwhat-it-is.html
http://toothwalker.org/optics/bokeh.html
http://www.luminous-landscape.com/essays/bokeh.shtml

You will only get the circular disc when there are bright highlight or light source(s) in the shot, try photographing out of focus christmas lights or street lights at night.

SOOC means Strait Out Of Camera i.e. Without any post processing.

Your lens is not the best for what you want. First of all, as has been said, you are not going to just get "circular discs" unless there are points of light sources in the background.

But you also have two other things working against you. For a really nice out of focus background, you need an aperture wider than 5.6. You need a lens capable of something like a largest aperture along the lines of 1.4. You can then step down the lens to about 2.0 or 2.8 and have creamy blurred background. Also, a lens that truly has good bokeh is typically designed with more aperture blades than a cheaper lens. A lens with 8 or 9 blades will give better highlight bokeh than a lens with only 5 aperture blades.

Bottom line, you can only do so much with the cheap kit lenses included with entry level DSLR cameras.